Printing press



R. JACOBUCC! PRINTING PRESS DE@ 9 v Filed Nov. l, 1922 4 Sheeis-Sheet l Dec. 9, 1924.

R. JACOBUCCI PRINTING PRESS Filed Nov. l, 1922 4 Sheets-Sheet 2 \NSN.

apaeZ fhcucci a@ 22 l I mommy Dec. 9 1.924

R. JACOBUCCI PRINTING PRESS Filed Nov. l, 1922 4 Sheets-Sheet 5 R. JACOBUCCI PRINTING PRESS Dec. 9? 1924- xw u .L

r u 1 :d w mm. y QW QW QW m `du; uw ,4. Nn.:

A WN. NNY

Filed NOV. l, 1922 PatentedDec. 9, 1924.

UNITED STATES Jacoiiucci, or raovinaNcE, nuova ISLAND.

PRINTING PRESS.

.application inea november i, i922. serial no. casan?.

To all wwm. it may concern:

Be it known that I, RAPHAEL JAooBUcoI,

a citizen of the United States, residing at` enable others skilled inthe art to which it appertains to vmake and yuse the same.

This. invention relates to multicolor printing and particularly to presses of this ty e adapted toprint on webs and to cut t e printed web into sheets.

The object of the present invention is to render presses of this type flexible and effi- ^/6fent,fadapted to make successive color impressions with accuracy and rapidity.

struction, arrangement and combination of parts as hereinafter more particularly described and claimed.

Four sheets of drawings accompan this reference characters indicate similar parts throughout. f

Figure 1 's a front elevation of a machine embodying the presentrinvention;

Fig. 2 is a side elevation taken from the left of Fig. 1;

Fig. 3 is a side elevation taken from the right of Fig. 1.;

Fig. 4 is a top ,plan view;

Fig. 5 is a transverse sectional View through the u per part of the press;

- Fig. 6 is a ongitudinal section taken on Fig. 7 is an enlarged cross-sectional view taken through the head of the press showing the platen type chase and adjustment members:

Fig. l8 is a cross-sectional view taken through the head of the press illustrating the adjustable paper guides;

Fig. 9 is a cross-sectional View through the platen;

Fig. 10 is a fragmentary detail sectional view of the sub-base for the type chase;

Fig. 1l is a plan view of the ty chase;

Fig. l2 is a side elevation of a p aten;

Fig. 13 isa plan elevation of a platen; I l Fig. 14 is a plan .elevation of the type chase base, and,

The invention consists inthe novel con'-y specification as part thereof in whic like lFig. 15 is a plan view of the type 4chase sub-base. y

In the embodiment' illustrated, a frame 1 supports a horizontally dis osed drive shaft 2 adapted to be operated y any suitable means, as electric motor 3, and carrying eccentrics adapted to operate connecting rods 4 to rock the type bed or chase carrier 5 which is pivoted to the frame as at l5 and extends longitudinali thereof. The weightof bed 5 is counterba anced in whole or in part by compression links 12 composed of members telescopingwith a tube which houses a compression spring. The drive shaft 2 further carries an eccentric adapted to operate a lever 7 through a connecting rod 6 torock a secondary shaft 8, also extending horizontally and longitudi- .nally of the press, said shaft 8 having levers 9 secured thereto which are connected links 10 to an inking device 11 adapted to slide transversely of the frame, and carrying the customary inkin are adapted to receive in from a plurality of ink appliers 19 set in suitable detachable ink reservoirs 19". The. reservoirs 19* are detachably secured to vthe frame by means of the bolts 200, as best illustrated. in Fig. 5 of the drawings. Ink spreading disks 18 of the customary character which may be rotated step by step by any suitablev mechamsm known in the art are disposed in the path of the inking rollers between the type and the ink reservoirs.

A platen-carrying head 13 is supported by frame 1 longitudinally thereof and above the type-bearing bed 5 and is preferably lof a reenforced construction having a medial longitudinal rib 20 and a plurality of transverse ribs 21, at the intersection of which, at suitable spaced distances, are bosses 22 havin@ suitable orifices to receive bolts 23 adapted to secure the platens 24 in position. Each platen 24 has a central threaded socket l25 adapted to receive bolt 23 and is provided adjacent its op osite parallel edges with grooves 26 so t at a suitable sheet pad 27 can be passed over the face of the platen and be secured theret0 by strips 28 forced into the grooves 26 confining the sheet as illustrated in Fig. 9.

Intermediate the platens 24 in the head 13 are transversely adjustable paper guides 57--57 each having a paper-receiving rollers 17 which groove 59, the grooves in ides 57 facing those in guides 57.4 Egalch Iguide has laterally extending lugs 58 -adapted to slidably seat in similar grooves 56 provided at the base of the transverse guidin grooves 55 within which the guides slide see Figs. 6 and 8). At the top of each of the grooves 55 is a member 60 having prongs 61 adapted to engage an annular ,groove formed 1n a screw 63 having right and left handed threads 62 and 62 respectively on opposite sides of said groove, said screw threaded portions engaging right and left hand threaded orifices in the guide members 57-57. By the rotation of screw 63 it will be apparent that guide members 57-57 can able co-mating orifices in the chase, overy be either advanced simultaneously toward each other or moved apart as desired to adjust the press to receive and guide paper of varying widths.

The type chase 46 is provided upon its rear edge with an outstanding lug 47 and upon its front edge with a beveled cam face 45; and upon one side of each chase is a type-high gage bar 48 having downwardly projecting pins 50 adapted to seat in suitcompression springs 49 that maintain bar 48 in a lnormally elevated position level with the type faces.

` The ends of gage bars 48 extend beyond the front and rear of the chases and .inoline downward slightly to make easy approach for the ink rolls. Above the ends of said bars on the frame member 13 are sto abutments 48a with which the ends of said bars engage when the bed rises to make an impression, thus pushing the bars downward relatively below the type faces so that the upper surface of the bars 48 do not press upon the paper and make ink impressions of their upper surfaces upon the paper.

A base 41 is provided upon which the type chase is adapted to be seated, said base having an u vward and inward directed securing mem ler 42 under which the outturned lu 47 of the chase is adapted to enage. T e base 41 is equipped, upon its ront edge, with a bracket 43 adapted to pivotally support a cam levery 44 operative to press upon cam face 45 of the type chase to securely lock the latter in osition upon the base 41. The basev41 isadljustably seated upon a sub-base 32.

The sub-base 32 is provided upon its y lower face with a dovetailed guide-rib adaptedA to lit in a resilient dovetailed guide-member 30, which, in turn, rests in a suitable slide way provided in the type bed 5. The resilient dovetailed member 30l is oompressible u on the sub-base 32 by means of a bolt 31 t readed through bed 5 as is well illustrated in Fig. 7. The sub-base 32 is further provided adjacent each of its four Leashes .corners with vertically disposed adjustment members 33 which have exterior threads ada' ted to cof-act with interiori threaded ori ces formed for the purpose 1n the subbase (see Fig. 10). The adjustment members 33 may' be formed with spherical bearing ends 34 upon which the base 41 is adapted to bear. F or operative purposes said members 33 are reduced between their ends and provided with spiral teeth of suchv itch as to co-mate with the usual threads of olts 36 arranged at right angles to the axis fof. adjustment members 33 in a suitable orifice provided therefor in the 'sub-base 32. The transverse screws 36 have enlarged parts 37 in which are formed annular grooves 38 adapted to co-operate with screws or pins 39 to prevent .longitudinal movement of said screws 36. Heads 40 enable screws 36 to be rotated to, in turn, rotate adjustment mem bers 33 to raise or lower the latter and adjust the chase bases. As indicated in Fig. 15 the rear adjustment members 33 are associated with operating screws extending forward and are adjustable'from the front of the machine'.

Brackets 14 at one end of the frame 1 sustain .a roll of paper 14, a paper guide roll 14b and a stock weight 14" which is pivoted to said bracket for the purpose of applying suitable retarding friction to the outer layer of paper as the roll unwinds.

In order to provide for feeding la webof paper intermittingly, causing ythe feed to stop during each' printing impression and then advance a measured distance to receive the next impression, intermittingly operated flanged feed rolls 16, 16a are disposed at that end of frame 1 that is opposite the roll-holding bracket 14, the flanges of the feed rolls gripping the opposite margins of the web.

Cutting mechanism, indicated as a whole by reference character 15, operates at regular intervals to cut off in succession sheets of dimensions determined by t e feed adjustment of the feed mechanism. A cut is made at each non-feed period.

In order to rotate the feed rolls intermittently in proper timing with the operation of the printing mechanism, the lower roll 16 is rotated by the mechanism to benow described: Secured on shaft 2, at the left hand end (as viewed in Fig. '1) is a cam 80 having a cam groove 81 in which engages a stud o a lever 82 that is pivoted at one end on frame 1; ,to the other end of lever 82 there is piv-y oted a link 83. A rack 84 is slidably mounted in the frame, the lower end of said rack being pivotally connected to the upper end of link 83. The continued rotation of shaft 2, therefore imparts reciprocating movements (separated by periods of dwell) to rack 84. Concentrically mounted with respect to the axis of lower feed roll 16 is a rintedareas than on the others. To equalize the pressure of the ink rolls on the types, the gage bars 48, which extend exactly type high, receive the pressure' of the rolls and prevent the smaller area of type from sinklng into the vrolls more than do the larger areas.` At' each impression the feed rolls 16, 16l stop, and the cutter cuts of't' a sheet; between impressions the feed rolls advance the web a distance equal to that between centers of4 the several chases or to any predetermined extent suitable to make the Several color impressions or color impression and. embossments according to. the predetermined design of the rinter. The several sub-bases may be a justed toward or from each other as required or a greater or less number may be secured to the bed and the associated mechanisms adjusted or applied accordingly. v

Having thus fully described my invention, I claim: i v

LA printing press comprising aframe, a head fixed on said frame carrying a plurality of downward facing platens, a type bed carrying chase bases, means for-leveling said chase bases with respect to type bed, paper guides interposed between. adjalcent platens and carried by the head, in king devices, means for operating the type ybed and inking devices, and means forfeeding the paper intermittingly substantially as specified. I y

2. A printing press comprising a frame, a head fixed on said frame carrying a plurality of downward facing platens, a type bed pivotally supported on-the frame carrying a plurality' of chase bases, paper ides on the head interposed between adjacent platens, means for simultaneously adjusting said guides transversely of the frame to vary the space therebetween, inking devices, means for operating the type bed, and means for feeding the paper intermittingly substantially as specified.

3. A printing press comprising a frame, ahead fixed on said frame carrying a plurality of downward facing platens, a type bed carrying a plurality of chase bases, paper guides on said head interposed between adjacent platens, right and left hand screws for simultaneously adjusting said guides transversely ofthe frame to vary the space there-between and center the paper, inking devices, means for operating the type bed and inking devices and means for feeding the paper substantially as specified.

4. In a printing press having a xed platen-carrying head, a t pe bed and means for moving it toward an from the platens, means for feeding paper between said platen carrying head and type bed, guides on said head for said paper having opposing grooves adapted to receive the edges of the paper, and means for simultaneously for securing the chase to the base, a subbase, means carried -by the sub-base for leveling the base thereon comprising exteriorly threaded leveling sts having annular grooves provided with s iral teeth adapted to co-mate with exterior y threaded adjustment screws and said adjustment screws arranged transversely of the posts and securedin the sub-base so as to permit their rotation but prevent any longitudinal movement thereof. and means for removably securing the sub-base to the frame of the press. f

7. In a printing press, the combination of a printing bed adapted to support type thereon, a platen, an inking mechanism including an inking roll adapted to move over the 'type surfaces, a gage bar, elastic means for maintaining the surface of said gage bar at t pe face level, and means on the platen a apted to contact with the gage bar and depress it below the type faces, when a printing impression is made.

8. In a printing press, a platen, a typecarrying bed, means for causing relative movement between them to effect printing impressions, an elastically yieldable gage bar held on the bed with its surface at type level, and having projecting ends, an inking mechanism including an inking roller, stops associated with the platen adapted to engage the projecting ends of said gage bar when a printing impression is made and depress the gage bar below the type surface.

9. In a multicolor printing press, a frame, a platen support` a bed, means thereon for receiving a plurality of groups of type in alinement, a plurality of ink supply devices, and inking means adapted to supply ink from a selected supply device to a selected type group. means for intermittently feeding a web bet-Ween the bed and platen over said several type groups, and means for causing relative movements of said platen and bed toward and from each other.

10. in a multicolor printing press, a frame, a platen support, a bed, means on the bed for receiving a plurality ofgroups of type in alinement, means for -inoving said bed and platen support relatively to each other to print, inking rolls movable over the bed, a plurality of removable ink spreading devices in the path of movement of said rolls for spreading ink upon the rolls, and

gear wheel 85, the teeth of which engage with the'teethof rack 84. The gea-r wheel 85 is free to rotate with respect to feed roll 16 exce t as it is connected therewith intermitting y by a ratchet and pawl device. A pawl 86 is pivoted to one face of said gear wheel 85, and this pawl has a normal tendency to engage a ratchet wheelL87 fast to roll 16. An angularly adjustable shield 88 on a handle member 89 is interposed between the pawl 86 and ratchet 87, so that as the gear 85 oscillates back and forth, the said shield allows the pawl to engage the ratchet during a portion of the oscillation determined by the angular position' of the shield. Graduation marks may be applied to the shield on handle and frame so that the amount of rotary movement to be imparted to the feed wheel 16 can be accurately measured and predetermined. The rack actuates th feed on its upward movement.

`While the feed is stationary,-that is, during the downward movement of rack 84,- the cutting mechanism is operated to sever a printed sheet or card. The cutting meenanism comprises the elements now to be described. A knife bracket 90 is rigidly secured to the frame to the left of the machine (as viewed in Fig. 1) and outside of the feed rolls. This bracket is suitably offsetfrom the frame 1 and has a guide way in its outer face,--the face away from the frame 1,-in which a knife carrying slide 91 is adapted to be reciprocated. To the knife carrying slide 91 a movable knife 92 is secured. Said knife 92 has an edge 93 adapted to sever the pa er with a draw cut. Bolted to the upper e ge of bracket 90 is a fixedl or ledger blade 94 across the edge of which the paper is sheared by the obliquely disposed edge of knife 92. Suitably fulcrumed at 95 on frame 1 is a knife operating lever 96, of the first order,

pivoted at 97 to the lower end of knife carrying slide 91. provide an o pen space between its edges at the lower end in order to permit free oscilla-y tion of lever 96. Mounted on rack 84, as shown in Fig. 2` is a dog 98 so disposed that it strikes the free end of lever 96 on the downward stroke of the rack, thus elevating the knife 92 and seilering a sheet while the feed rolls are at rest. The dog 98 may be removed or turned out of operative position in case it is not desired to sever sheets from the web being printed.

Numeral 100 indicates a pressure release lever whereby the bed may be moved slightly from the platens in case of need even though the bed be pressed against the platens by the operating cams and connecting rods 4. Numeral 101 indicates a handwheel by means of which the shaft 2 may be rotated or rocked by hand.

`In order to stop'the machine -in case the web should break or upon exhaustion of the Bracket 90 is so formed as to `105. The freeend of arlr. 104 is equipped with a feeler 106 consisting of elastic fingers disposed over slots 103 and adapted to bear. upon the paper passing between them and the feeler plate. The" feeler 106 is curved in the direction indicated in Fig. l. Should the paper `break between the feeler and supply. roll, or the supply cease, arm

104 would drop by gravity, the elastic 1ingers of the feeler entering the slots 103. An automatictrip lever 107 is engaged by arm 104 and held when the paper is feeding normally with its abutment end 108 engaging the end of aspring actuated trip rod 109 that is slidable in a guide bearing 110 and is normally urged elastically upward by a coil compression springl 111, Athat bears against the upper side of said guide bearing and a collar 112 o`n the rod. A. stop collar 113 limits the upward movement of the rod. At its lower end trip rod 109 isconnected to a bell crank lever 114 the end 115 of which may serve as a trip dog to actuate a switch (not shown) or'any kind of stop mechanism to stop the operation of the machine.

In operation a roll of paper is mounted on bracket 14 the end thereof passedv over idle roll 14b and the stock weight 14c adjusted to keep the paper smooth on roll14s as it is being unwound. The end of the paper web is passed over feeler plate 102 beneath the feeler 106 and the web is passed along between the bed and platens,

,the guides 57, 57 having been adjusted so that the edges of the web enter the guide notches 59 therein. Said guides serve to center the web properly with respect to the` tvpe bed. Theweb .is then passed between the flanges of feed rollers 16, 16a and under the ledger blade 94. Types are locked in the various chases on the type bed in accordance with the number of colors to be used or whether the work is to be embossed.

lf an embossing impression is to be made a morenas detachable and adjustabe ink supplying reservoirs adapted to deliver ink to said rolls.

ll. iin a vrintng press, a frame. a platen support, a ed, means for producing movement thereof to print, means for feeding a web 'of paper between the bed and platen, said means including a reciprocating bar and means operated thereby on one stroke for advancing the paper, cutting means for severing a. printed sheet from the Wein9 and means on said bar arranged to co-operate on its other stroke with said cutting means to sever the sheet.

ln testimonywhereof aix my signature.

i. AJPHEL JACGBUCCI. 

